山形県庄内地域における2004年台風第15号および第16号による ダイズ潮風害の実態

日本作物学会紀事

柴田 康志³  藤井 弘志²  松田 裕之¹  森静 香² 

[1] 山形県最上総合支庁産業経済部農業技術普及課;山形大学農学部;山形県農業総合研究センター水田農業試験場

关键词: Damage by gale;    強風害;    Damage by salty winds;    潮風害;    Soybean;    ダイズ;    Typhoon;    台風;   

DOI  :  10.1626/jcs.81.160

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

We analyzed the state of gale damage of soybean in the Shonai district of Yamagata prefecture caused by typhoon No.15 and No.16 in 2004. The rate of soybean yield decrease in the Shonai district was lower than that of rice yield decrease. In general, the soybean yield was lower in the coastal area than in the inland area, and in the northern part than in the southern part of Shonai district, probably because the wind was stronger and more salt particles reached inland in the northern part. The leaves of soybean plants began to dehydrate immediately after exposure to salty winds of typhoon NO.15, resulting in shrinkage and browning, and then defoliation at an early stage. There was a significantly negative correlation between the distance from coastline and the degree of shrinkage and browning in the northern part of Shonai district. Spraying of seawater to the field significantly reduced the total weight at the maturing stage, number of ripening pods, number of ripening grains, yield and 100-grain weight of soybean. From these results, we concluded that gale damage caused by the two typhoons reduced the yield of soybean in the whole Shonai district, and that salty wind damage due to typhoon No.15 reduced the yield of soybean especially in the northern part of Shonai district.

【 授权许可】

Unknown